德国柏林,当地海洋生活中心的“幼儿园水族馆”内,5条手掌大小的2至3个月大的鳐鱼宝宝正在自由自在地游动。这些珍稀的小宝宝能长成翼展一米多长的大鱼,它们嘴巴上方的两个像眼睛一样的小凹槽其实是它们的鳃。印度尼西亚婆罗洲,一只蚂蚁骑在蜗牛背上过河,尽管蜗牛的速度有目共睹,但是这也不失为一种最保险的过河方法吧。 In Berlin, Germany, at the “Kindergarten Aquarium” at the local marine life center, five palm-sized baby bream fish, 2 to 3 months old, are swimming freely. These rare little babies grow into large, one-meter-long fish whose two eye-like grooves above their mouths are actually their gills. An ant rides across the snail's back in Borneo, Indonesia, and although the speed of the snail is readily apparent, it is one of the safest ways to cross the river.